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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about _______________ mm Hg (absolute)?
A 5-10
B 30-80
C 150-250
D 350-400
Correct Answer: 30-80
Which of the following is not an important property of fuel oil/furnace oil ?
A Sulphur content
B Viscosity
C Aniline point
D Flash point
Correct Answer: Aniline point
High aniline point of a petrofuel (say diesel) indicates that ________________?
A It is highly aromatic in nature
B It is highly paraffinic in nature
C It has a very low diesel index
D Its ignition quality is very poor
Correct Answer: It is highly paraffinic in nature
The vacuum maintained in vacuum distillation unit for reduced crude is about _______________ mm Hg?
A 1.2
B 12
C 120
D 700
Correct Answer: 12
Liquefied Petroleum Gas (LPG) is mainly a mixture of _____________________?
A Propane & butane
B Methane & ethane
C High boiling olefins
D High boiling naphthenes
Correct Answer: Propane & butane
Which of the following has the lowest cetane number ?
A Aromatics
B i-paraffins
C Naphthene
D Olefins
Correct Answer: Aromatics
Pressure & temperature maintained in catalytic cracking is about__________________?
A 2 atm & 500°C
B 10 atm & 500°C
C 30 atm & 200°C
D 50 atm & 750°C
Correct Answer: 2 atm & 500°C
In catalytic cracking, the___________________?
A Gasoline obtained has a very low octane number
B Pressure & temperature is very high
C Gasoline obtained has very high aromatic content
D Gasoline obtained has very high amount of gum forming compounds
Correct Answer: Gasoline obtained has very high aromatic content
Carbon percentage (by weight) in crude petroleum may be about_________________?
A 65
B 75
C 85
D 95
Correct Answer: 85
CnH2n is the general formula for_______________?
A Olefins
B Naphthenes
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
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